001// Copyright 2006, 2008, 2011 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.services;
016
017import org.apache.tapestry5.commons.Resource;
018import org.apache.tapestry5.internal.parser.ComponentTemplate;
019import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
020
021import java.net.URL;
022import java.util.Map;
023
024/**
025 * Parses a resource into a {@link org.apache.tapestry5.internal.parser.ComponentTemplate}. The service's configuration
026 * is used to map common document types to internal copies of the corresponding DTD.
027 *
028 * @see org.apache.tapestry5.internal.services.PageLoader
029 */
030@UsesMappedConfiguration(URL.class)
031public interface TemplateParser
032{
033    /**
034     * Parses the given resource into a component template.
035     *
036     * @param templateResource the path
037     * @return the parsed template contents
038     * @throws RuntimeException if the resource does not exist, or if there is any kind of parse error
039     */
040    ComponentTemplate parseTemplate(Resource templateResource);
041
042    /**
043     * Returns a mapping from URL string to a local equivalent URL, used to avoid attempting to pull
044     * well-known DTDs down over the wire while parsing XML.
045     *
046     * @since 5.3
047     */
048    Map<String, URL> getDTDURLMappings();
049}
050